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Dear @all, my Asus Router RT-AC88U - flashed with current Merlin Beta-Firmware 380.67_alpha2 - is configured to run as AirVPN OpenVPN-Client. ccording to the following AirVPN HowTo: https://airvpn.org/asuswrt/ After importing AirVPN's *.ovpn config-file, I modified the following OpenVPN client-parameters in the advanced settings section (my suggestion to everyone):Accept DNS Configuration (AirVPN -> Disabled): Should be "Strict" (recommended) or alternatively to "Exclusive"Redirect Internet traffic (AirVPN -> No): Should be set to "all", to be sure, that every traffic will be forwarded through the VPN-tunnelI added "mute-replay-warnings" to the custom configuration field. So, now AirVPN-client connection is up and vpn connection via the router is running successfully. In addition to that, I'd like to use the OpenVPN-server of the above mentioned router, to enable secure remote access to my home network (NAS, Samba-Shares, Printers etc.) - from the road (when I'm not at home) - using my mobile phone or my Laptop. So I startet with the configuration of OpenVPN-server 1. Sample for Advanced Config: see attached image After saving the configuration, I startet the router's export and imported the generated *.ovpn-file to my client devices OpenVPN-installation. Then I configured an open port using the "remote port forwarding"-feature of AirVPN's client-backend, in order to enable TCP/UDP-Traffic to my local OpenVPN-Server port (e.g. 1149) using a predifined ddns-alias (like XXXXX.airdns.org). So for example Airvpn port 50000 directs to local port 1149 (TCP + UDP). Unfortunaltely I got now stuck with building up any connection from the clients. The DNS-resolution of AirVPN works correctly (client receives correct OpenVPN-Server IP), but the OpenVPN-Client (version 1.1.1 build 212 - 64-bit on iPhone)) ends with connection_timeout. iPhone's OpenVPN-client Log-File (anonymized):
2017-06-11 02:07:16 ----- OpenVPN Start -----
OpenVPN core 3.1.2 ios arm64 64-bit built on Dec 5 2016 12:50:25
2017-06-11 02:07:16 Frame=512/2048/512 mssfix-ctrl=1250
2017-06-11 02:07:16 UNUSED OPTIONS
2017-06-11 02:07:16 EVENT: RESOLVE
2017-06-11 02:07:16 Contacting 46.165.XXX.XXX:YYYYY via TCP
2017-06-11 02:07:16 EVENT: WAIT
2017-06-11 02:07:16 SetTunnelSocket returned 1
2017-06-11 02:07:16 Transport Error: TCP connect error on 'XXXXXX.airdns.org:YYYYY' (46.165.XXX.XXX:YYYYY): Connection refused
2017-06-11 02:07:16 Client terminated, restarting in 2000 ms...
2017-06-11 02:07:17 NET Internet:ReachableViaWWAN/WR t------
2017-06-11 02:07:18 EVENT: RECONNECTING
2017-06-11 02:07:18 Contacting 46.165.XXX.XXX:YYYYY via TCP
2017-06-11 02:07:18 EVENT: WAIT
2017-06-11 02:07:18 SetTunnelSocket returned 1
2017-06-11 02:07:19 Transport Error: TCP connect error on 'XXXXXX.airdns.org:YYYYY' (46.165.XXX.XXX:YYYYY): Connection refused
2017-06-11 02:07:19 Client terminated, restarting in 2000 ms...
Is there anything more I need to configure on the router or the client? Maybe a firewall forwarding problem (if this could be the problem, what do I need to do)? Since I do not have to forward to a specific client in my home lan (that is running a OpenVPN-server), but the main router itself is the OpenVPN server, I didn't find a suitable configuration example, yet. I would be very grateful for tips or helping hints.